Motor coasts
DC Injection Braking
with the current set in
b2-02
Run
command
Output
frequency
ON
OFF
Motor speed
Minimum Baseblock
Time (L2-03)
Figure 1.4 DC Injection Braking to Stop
DC Injection Braking time is determined by the value set to b2-04 and the output frequency at the time the Run command is
removed. It can be calculated by:
DC Injection brake time
(b2-04) x 10 x Output frequency
Maximum output frequency (E1-04)
=
Output frequency when
Stop command was entered
100%
(Maximum output
frequency)
10%
DC Injection braking time
b2-04
×
10
b2-04
Figure 1.5 DC Injection Braking Time Depending on Output Frequency
Note:
If an overcurrent (oC) fault occurs during DC Injection Braking to Stop, increase the momentary power loss minimum baseblock time
(L2-03) until the fault no longer occurs.
Setting 3: Coast with Timer
When the Run command is removed, the drive will turn off its output and the motor will coast to stop. The drive will not start
if a Run command is input before the time
t
(C1-02) has expired. Cycle the Run command that was activated during time
t
after
t
has expired to start the drive.
Drive output shut off
Run wait time t
Run command
Output
frequency
ON
ON
ON
OFF
OFF
Figure 1.6 Coast with Timer
The wait time
t
is determined by the output frequency when the Run command is removed and by the active deceleration time.
1.2 b: Application
YASKAWA SIEP YAIZ1U 03B YASKAWA AC Drive – Z1000 Programming Manual
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1
Parameter Details